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Highly Ordered Pseudo-Discotic Chromophore Systems for Electro-Optic Materials and Devices

Published online by Cambridge University Press:  01 February 2011

Nishant Bhatambrekar ,
Scott Hammond ,
Jessica Sinness ,
Olivier Clot ,
Harry Rommel ,
Antao Chen ,
Bruce Robinson ,
Alex K-Y. Jen  and
Larry Dalton
Nishant Bhatambrekar
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
Scott Hammond
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
Jessica Sinness
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
Olivier Clot
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
Harry Rommel
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
Antao Chen
Affiliation:
Applied Physics Laboratory, University of Washington, Seattle, WA 98105–5640
Bruce Robinson
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
Alex K-Y. Jen
Affiliation:
Department of Material Science and Engineering, University of Washington, Seattle, WA-98195–2120
Larry Dalton
Affiliation:
Department of Chemistry, University of Washington, Seattle, WA-98195–1700
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Abstract

In order to achieve the near-ferroelectric order desired in organic electro-optic (EO) chromophore systems, a pseudo-discotic chromophore is under investigation. Calculations suggest head-to-tail inter-chromophore dipole-dipole interactions should drive chromophores with an appropriate aspect ratio into ferroelectric columns similar to those seen in discotic liquid crystals (DLCs). Therefore, the liquid crystalline properties of these chromophores are being examined by differential scanning calorimetery (DSC), polarized optical microscopy (POM), and X-ray diffraction (XRD). Furthermore, the effect of this discotic behavior on the order and EO properties of the system are being examined both dynamically by second harmonic generation (SHG) and statically by attenuated total reflection (ATR). Additionally, these chromophores are being incorporated into waveguide-based photonic devices.

Type
Research Article
Information
MRS Online Proceedings Library (OPL) , Volume 846: Symposium DD – Organic and Nanocomposite Optical Materials , 2004 , DD6.2
Copyright
Copyright © Materials Research Society 2005

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References

REFERENCES

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